/**
   A class to compare numbers.
*/
public class Numbers
{
   /**
      Checks whether three numbers are all different
      @return true if none of the numbers a, b, or c are equal to another
   */
   public boolean allDifferent(int a, int b, int c)
   {
      // your work here
       if(a!=b&&b!=c&&a!=c){
     return true;
     }
     else{
        return false;
     }
   }
   
}